Get checked attributes in recursive knockout

I have a recursive dom in KnockoutJs:

<ul data-bind="template: { name: 'tree-hierarchy', foreach: someArray }"></ul>
<script id="some-tree" type="text/html">
    <li>
      <input type="checkbox" data-bind="attr: { id: id, name: name, value: value}, click: someFunc">
   </li>
</scrpt>

I want to get the checked element's attributes so I use click functionality to get the data in the fucntion:

someFunc(data: any, event: any) {
   //event.target gets me the attributes
}

I get the data I want in event.target, but immedialtly checked becomes unchecked. If click functionality is not there, like this, checked remains:

<input type="checkbox" data-bind="attr: { id: id, name: name, value: value}>

The check remains, but when 'click' functionality calling the function is present, it unchecks immediately. I want it to remain. I dont want to use 'checked: boolValue', functionality of knockout, since it is dynamically created and if there are 10 values in array, there would be 10 checbox inputs, hence having one bool value makes no sense.

I want checkbox to remain checked, after the call to function is completed.